BMW 51718174758 is the right-side roof-frame gasket used on E36 sedan applications. This body-style detail matters: it should not be illustrated or sold as an E36 coupe seal merely because both cars belong to the E36 generation.
Specialist BMW application data lists the right roof-frame gasket for E36 sedan models including 318i, 325i, 328i and M3 Sedan applications. E36 owners also regularly report that original weather seals have become expensive and difficult to replace in the exact original configuration.
BMW 51718174758 identification
| Item | Verified detail |
|---|---|
| BMW number | 51718174758 |
| Component | Right roof-frame gasket |
| Body style | E36 sedan |
| Side | Right |
| Main sourcing problem | Age, high genuine-part pricing and inconsistent availability |
Why E36 seals are becoming difficult
Mechanical E36 service parts benefit from a large aftermarket, but long molded body seals are much more vehicle-specific. They also continue aging even on low-mileage cars.
When original stock becomes expensive, owners often have to choose between a new genuine seal, a carefully selected used original or a reproduction.
Confirm the leak before buying
Wind noise or water in an E36 does not automatically prove that this gasket is the cause. Door adjustment, neighboring seals, sunroof drains and glass alignment can create similar symptoms.
Inspect the car methodically before purchasing an expensive seal.
Used gasket inspection
- Check flexibility along the complete length.
- Inspect both ends for cracking.
- Look for flattened areas.
- Check the mounting channel.
- Inspect previous adhesive use.
- Confirm that it came from a sedan.
- Verify right-side orientation.
Restoring an E36 sedan?
Search BMW body and restoration parts by OEM number, body style and VIN rather than relying on a generic "fits E36" listing.
Frequently Asked Questions
What is BMW 51718174758?
It is the right roof-frame gasket for relevant E36 sedan applications.
Does it fit an E36 coupe?
No universal coupe application should be inferred. The verified part data is for the sedan body.
Does it fit an E36 M3?
Application listings include the E36 M3 Sedan. Verify the exact VIN before purchase.
Is 51718174758 definitely NLA?
No. This article does not claim universal NLA status. The problem is scarcity, age and cost; current stock varies between suppliers.
Can I use a second-hand gasket?
Yes if it remains flexible, complete and undamaged.
Can rubber conditioner repair a torn seal?
No. Conditioner can help maintain healthy rubber but cannot recreate missing material.
Why should body style be checked first?
E36 coupe, sedan, convertible and Touring body openings and seals differ. Visual similarity is not fitment proof.
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